格式编号n SQL

我想将数字格式化如下：

从

65803.12345

到

65803.12

---

从

65803.98500

到

65803.98

如果您只想在小数点后两位数，而不需要上限或下限

DECLARE @i AS float 
DECLARE @TmpInt AS INT 
DECLARE @TmpDec AS FLOAT 

SELECT @i = 65803.12345 
SELECT @TmpInt = (SELECT CAST(@i AS INT))
SELECT @TmpDec = @i - @TmpInt
SELECT CAST(((CAST(@TmpInt AS VARCHAR(50)) + SUBSTRING((LEFT((CAST(@TmpDec AS VARCHAR(50))), 4)), 2, 3))) AS DECIMAL(10, 2))
-- Output : 65803.12

SELECT @i = 65803.98500
SELECT @TmpInt = (SELECT CAST(@i AS INT))
SELECT @TmpDec = @i - @TmpInt
SELECT CAST(((CAST(@TmpInt AS VARCHAR(50)) + SUBSTRING((LEFT((CAST(@TmpDec AS VARCHAR(50))), 4)), 2, 3))) AS DECIMAL(10, 2))
-- Output : 65803.98

SELECT @i = 65803.12666
SELECT @TmpInt = (SELECT CAST(@i AS INT))
SELECT @TmpDec = @i - @TmpInt
SELECT CAST(((CAST(@TmpInt AS VARCHAR(50)) + SUBSTRING((LEFT((CAST(@TmpDec AS VARCHAR(50))), 4)), 2, 3))) AS DECIMAL(10, 2))
-- Output : 65803.12

您可以使用

圆形（，）

：

更多信息：

试试这个

 declare @s decimal(12,5)
 set @s = 65803.98500
 select cast(@s-@s%1+cast(@s%1*100 as int)*0.01 as decimal(12,2))

结果是

65803.98

---

使用

CAST（Num作为十进制数（18,2））

要舍入还是截断？将65803.12666添加到示例数据中！也可以考虑在前端应用程序中这样做。

65803.98